* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background: #090909;
  color: white;
}

.hidden {
  display: none;
}

.login-screen {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: radial-gradient(circle, #1b1b1b, #050505);
}

.login-card {
  width: 350px;
  background: #111;
  border: 1px solid #333;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 0 25px rgba(255,255,255,0.05);
}

.login-card h1 {
  margin-bottom: 10px;
}

.login-card p {
  color: #aaa;
  margin-bottom: 20px;
}

.login-card input {
  width: 100%;
  padding: 13px;
  margin-bottom: 12px;
  border: 1px solid #333;
  background: #050505;
  color: white;
  border-radius: 10px;
}

.login-card button,
.logout,
.download-btn {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 10px;
  background: #2f7cff;
  color: white;
  cursor: pointer;
  font-weight: bold;
}

.login-card button:hover,
.logout:hover,
.download-btn:hover {
  background: #1d5ed1;
}

#loginError {
  display: block;
  margin-top: 15px;
  color: #ff4c4c;
  font-size: 14px;
}

header {
  padding: 25px;
  background: #111;
  border-bottom: 1px solid #333;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header p {
  color: #aaa;
  margin-top: 5px;
}

.logout {
  width: auto;
  padding: 12px 20px;
  background: #ff3b3b;
}

.games-container {
  padding: 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 25px;
}

.game-card {
  background: #111;
  border: 1px solid #333;
  border-radius: 18px;
  padding: 20px;
}

.game-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: #222;
  border-radius: 14px;
  margin-bottom: 15px;
}

.game-card h2 {
  margin-bottom: 8px;
}

.game-card p {
  color: #bbb;
  margin-bottom: 15px;
}

.version-area {
  display: grid;
  gap: 15px;
}

.version-card {
  background: #080808;
  border: 1px solid #292929;
  border-radius: 14px;
  padding: 15px;
}

.version-card h3 {
  margin-bottom: 12px;
}

.version-item {
  background: #151515;
  padding: 12px;
  border-radius: 10px;
  margin-bottom: 10px;
}

.version-item span {
  display: block;
  color: #aaa;
  font-size: 13px;
  margin: 5px 0 10px;
}

.download-btn {
  display: block;
  text-align: center;
  text-decoration: none;
}